DE2348411C3 - Vierkanal-Stereophoniedemodulator - Google Patents

Vierkanal-Stereophoniedemodulator

Info

Publication number
DE2348411C3
DE2348411C3 DE2348411A DE2348411A DE2348411C3 DE 2348411 C3 DE2348411 C3 DE 2348411C3 DE 2348411 A DE2348411 A DE 2348411A DE 2348411 A DE2348411 A DE 2348411A DE 2348411 C3 DE2348411 C3 DE 2348411C3
Authority
DE
Germany
Prior art keywords
signal
channel
switch circuit
frequency
sub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE2348411A
Other languages
German (de)
English (en)
Other versions
DE2348411A1 (de
DE2348411B2 (de
Inventor
Yoshio Neyagawa Horiike
Tuneo Katano Ohkubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE2348411A1 publication Critical patent/DE2348411A1/de
Publication of DE2348411B2 publication Critical patent/DE2348411B2/de
Application granted granted Critical
Publication of DE2348411C3 publication Critical patent/DE2348411C3/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
DE2348411A 1972-09-29 1973-09-26 Vierkanal-Stereophoniedemodulator Expired DE2348411C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9851872A JPS5315602B2 (enrdf_load_stackoverflow) 1972-09-29 1972-09-29

Publications (3)

Publication Number Publication Date
DE2348411A1 DE2348411A1 (de) 1974-04-18
DE2348411B2 DE2348411B2 (de) 1979-08-02
DE2348411C3 true DE2348411C3 (de) 1980-04-03

Family

ID=14221856

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2348411A Expired DE2348411C3 (de) 1972-09-29 1973-09-26 Vierkanal-Stereophoniedemodulator

Country Status (7)

Country Link
US (1) US3909539A (enrdf_load_stackoverflow)
JP (1) JPS5315602B2 (enrdf_load_stackoverflow)
CA (1) CA1024219A (enrdf_load_stackoverflow)
DE (1) DE2348411C3 (enrdf_load_stackoverflow)
FR (1) FR2201581B1 (enrdf_load_stackoverflow)
GB (1) GB1401562A (enrdf_load_stackoverflow)
NL (1) NL7313375A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061882A (en) * 1976-08-13 1977-12-06 Quadracast Systems, Inc. Quadrature multiplying four-channel demodulator
JPS6322930A (ja) * 1986-07-16 1988-01-30 Yutani Heavy Ind Ltd 建設機械の油圧回路

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149396B (de) * 1961-12-02 1963-05-30 Telefunken Patent Empfangsschaltung fuer kompatible Rundfunk-Stereophonie
US3308241A (en) * 1963-01-23 1967-03-07 Tokyo Shibaura Electric Co Fm stereo demodulating device using a diode ring modulator switching circuit
DE1200364B (de) * 1963-09-05 1965-09-09 Telefunken Patent Schaltungsanordnung zur Gewinnung der beiden Lautsprechersignale auf der Empfangsseite bei der kompatiblen Rundfunk-Stereophonie nach dem Multiplexverfahren
US3309464A (en) * 1964-01-03 1967-03-14 Philco Corp Stereophonic receiver having crosstalk compensation means
FR1484513A (enrdf_load_stackoverflow) * 1964-05-18 1967-09-28
US3479463A (en) * 1967-03-28 1969-11-18 Zenith Radio Corp Wave signal receiver
US3707603A (en) * 1969-12-29 1972-12-26 Rca Corp Fm stereophonic receiver detection apparatus and disabling means
CA1021852A (en) * 1970-02-25 1977-11-29 Louis Dorren Compatible four channel fm system
US3708623A (en) * 1970-04-29 1973-01-02 Quadracast Syst Inc Compatible four channel fm system
US3721766A (en) * 1970-11-16 1973-03-20 Motorola Inc Frequency multiplying circuit utilizing time gates and switching signals of differing phases
DE2264591A1 (de) * 1971-04-15 1974-06-12 Matsushita Electric Ind Co Ltd Vierkanal-fm-empfaenger
DE2261519C3 (de) * 1971-12-16 1979-12-20 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) Vierkanal-Stereophonie-Demodulationssystem

Also Published As

Publication number Publication date
FR2201581A1 (enrdf_load_stackoverflow) 1974-04-26
CA1024219A (en) 1978-01-10
FR2201581B1 (enrdf_load_stackoverflow) 1976-11-19
DE2348411A1 (de) 1974-04-18
GB1401562A (en) 1975-07-16
NL7313375A (enrdf_load_stackoverflow) 1974-04-02
US3909539A (en) 1975-09-30
JPS5315602B2 (enrdf_load_stackoverflow) 1978-05-26
JPS4956503A (enrdf_load_stackoverflow) 1974-06-01
DE2348411B2 (de) 1979-08-02

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)